Notification
Under the Notification of Cooling Towers and Evaporative Condensers Regulations 1992, you must tell your local authority about any cooling tower or evaporative condenser on your premises, and tell them again if it is taken out of use.
Risk assessment and written scheme
A specific legionella risk assessment for the cooling system is needed, together with a written scheme covering water treatment, monitoring, cleaning and what to do if results are out of range.
Typical monitoring
| Task | Typical frequency |
|---|---|
| Dip slide (TVC) and water treatment checks | Weekly |
| Water chemistry checks | Weekly to monthly |
| Legionella sampling | At least quarterly |
| Cleaning and disinfection | At least every six months |
Records
Keep the risk assessment, scheme, treatment and monitoring results, cleaning records and the names of those responsible for at least five years.
Frequently asked questions
Who enforces cooling tower rules?
HSE or the local authority, depending on the type of premises. Local authorities also hold the register of notified cooling towers.
Disclaimer: This guide is general information about UK requirements and is not legal advice. Always check the current legislation and guidance for your premises.